/*flex布局*/
.u-f {
	display: flex;
}
.u-f-ac,.u-f-ajc ,.u-f-jsb,.u-f-jse {
	display: flex;
	align-items: center;
}

.u-f-ajc {
	justify-content: center;
}
.u-f-jsb {
	justify-content: space-between;
}
.u-f-jse {
	justify-content: space-evenly;
}
.u-f-dc,.u-f-dcc {
	display: flex;
	flex-direction: column;
	justify-content: center;
}
.u-f-dcc {
	align-items: center;
}